Film-pack camera.



C. BORNMANN.

HLM PACK CAMERAy APPLlCATlON FILED APR.28,1915.

UNITED sTATEs PATENT oEEioE.I

CARL BORNMANN, OF BINGHAMTON, NEW YORK, ASSIGNOR TO ANSCO COMPANY, AkCORPGRA'IION OF NEW YORK.

FILM-PACK onivrEEn.v

To all whom t may concern.' j

Be it known that I, CARL BoRNMANi-r, a citizen of the United States, anda resident of the city of Binghamton, countyV of Broome, and State ofNew York, have invented certain new and useful Improvements in Film-PackCameras, of which the following is a specification.

I-t is the purpose of this invention to provide a simply constructed andeiiicient film pack camera, so madev that the film pack shall besecurely held in place, that its introduction to and removal from thecamera may be easily effected and that the opening through which theleading strip, tab or tabs, so called, project, shall be so constructedas to practically preclude the entrance of light, thus preventingfogging of the film.

In the drawings Figure 1 is a side elevation of a camera embodying theinvention partly broken away and shown in section, the parts being inthe position they occupy when ready for use; Fig. 2 is a side elevationof the rear part of a camera embodying the invention, the parts being inposition for the insertion or removal of the pack, Fig.y3 is a rearelevation of the camera partly broken away to show the spring, whichprojects the pack for ready removal and holds it firmly in position;Fig. 4 is a plan view of the camera, the parts being in position foruse.

In the drawings, 1 represents the camera body, 2, 2, (see Figs. 1 and 4)the iinders, one for horizontal and the other for vertical exposures, 3the shutter manipulating devices, 4 the lens, 5 the handle.

The camera is made in the form of a closed box having a iilm packchamber in rear of the focal plane and an opening through the upper wallof the boX through which the pack may be introduced into the chamber.rIhis opening has a swinging cover 6, which has flanges 7, 7 at its endswhich embrace the adjoining edges of the camera box and are provided attheir ends respectively with suitable pivots 8, S, whereby the swingingcover is pivoted to the= camera-box. The cover is fiat on its top 9 andis provided with an overhanging flange 10 on its rear edge provided witha lip 11 having an opening 12 therein which, when the cover is fullyclosed, catches over a projection 13 made upon a plate 14 fastened tothe camera box.

Speeificaticn of Letters atent.

- and Patented Sept. 21, 1915.

Application filed 1113121128, 1915. Serial No. 24,406.

t In the fia-t top of the swinging cover there 1s made a narrow openingor slot 15 of such restricted width as will permit the leading strip orall of the tabs 16 of the film pack, as the case may be,

pass therethrough space asmay be, thus trance of light and it will benoted that as the successive exposures are made and the leading strip ortabs are torn olf, their ragged edges accumulating at the opening 15will additionally preclude the entrance of light and this result isfurther assured by the action of a spring 17 (see Figs. 1 and 3) whichis located in the bottom of the film chamber and upon which the filmpack 18 rests and is compressed by it when the swinging' cover G isclosed and latched. When the cover is opened, as in Fig. 2, this springprojects the upper edge of the pack 18 as shown above the side of thecamera so that it may be easily grasped and removed. It will be notedthat the spring presses the ragged edges of the torn ofi' leading stripor tabs and also the upper edge of the pack itself snugly against theclosed cover, thus, as stated, aiding in the eX- clusion of light.

The operation, in view of what has been said, is obvious and does notrequire specific description except to say that upon the introduction ofthe pack, as shown in Fig. 2, and before the closing of the swingingcover upon it, the projecting end of the leading strip or of the tabs16, as the case may be, should be bent over and introduced through thenarrow slot or opening 15 in the swinging cover, as indicated in dottedlines in Fig. 2.

It will be obvious to those who are familiar with this art thatmodications may be made in the details of construction and yet theessentials of the invention be retained. I therefore do not limit myselfto the details.

I claim:

1. A camera having a film pack chamber at the focal plane, an openingfor the introduction of the pack at the upper end of the chamber, aspring at its lower end, a cover for the opening provided with a narrowslot and means to lock the cover when closed.

2. A camera having a lm pack chamber at the focal plane, an opening forthe introduction of the pack in 'the upper end of the chamber, a springat its lower end, a swingwith as little open to project therefrom,precluding the ening cover for the opening pivoted Camera body andprovided slot and means to lock the closed.

3. A camera at the focal plane,

chamber, a spring for the opening having a flat top and fianges uponthree of its sides and a narrow the flat top and means to lock the coverwhen itis closed.

4. A camera duction of the pack Copies of this patent' ma'y be' obtainedfor with a narrow cover when 1t 1s having a film pack chamber an openingfor the introduction of the pack at the upper end of the at its lowerend, a cover to the with a narrow slot 5. A camera spring slot 1n meansto lock against the stress o pack is in position.

ve centsl each, by addressing the Washi'ngtongl). C.

cover and hold it closed a of the spring when the pack is in position.

having a film pack chamber pening for the introo the chamber, a o positesaid er stress by for the t and at the focal plane, an o duction of thepack int within the chamber opening adapted to be put un the insertionof the pack, a cover opening provided with a narrow'slo and hold thecover shut f the spring when the and means to lock the gainst the stressIn testimony whereof I have signed my name to this specification.

CARL BORNMANN.

Commissioner of Patents,

